tl;dr - only read the intro > by the time you’re in your mid-teens, you’re probably as smart as you’re going to be – not as worldly or wise as you will be late

tl;dr - only read the intro > by the time you’re in your mid-teens, you’re probably as smart as you’re going to be – not as worldly or wise as you will be later, but the raw brainpower is mostly there. So you’ve got a four-year chunk during which you’re smart enough to learn anything a novice adult version of you could; 1. This presuppoess that "smart" is the essential ingredient for success. How about maturity/self-discipline? There is no way a 14 year old has the maturity of an 18 year old to deal with learning or doing difficult things. 2. IME a very significant problem that teens have learning is the "fixed mindset". When they are unable to do something right away, especially if they observe their peers can, most don't know how to put in the work to improve. In fact, they behave as if they cannot improve. Concealing one's inability to do something is very common. The author does bring this up in "4F" but I don't feel like it addresses the problem very well. It postulates an ideal student who will connect with someone who is more motivated than them, but then not just ride their coattails. I don't even see that in the business world.